| 塔东南坳陷侏罗系杨叶组沉积相特征及古环境研究 |
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| 关键词:Tarim Basin Yangye Formation sedimentary characteristics paleoclimate beneficial hydrocarbon source rock exhibition area |
| 基金项目:国家“十二五”科技重大专项重点油气勘探新领域储层地质与评价“薄互层-细粒储层地质与评价”(编号: 2011ZX05009-002) |
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| 摘要: |
| Sedimentary Facies Characteristics and Palaeoenvironment of Jurassic Yangye Formation in the Southeastern Depression of the Tarim Basin |
| Depositional environment is directly related to the development of source rock, and hence the study of the depositional environment has important significance for optimizing the favorable exploration blocks. The authors studied sedimentary facies characteristics and palaeoenvironment of Jurassic Yangye Formation on the basis of core observation, lithologic-electric logging features, test data, outcrop and palaeontological features. It is pointed out that the study area has developed two types of sedimentary facies: braided delta river facies and lake facies. The palaeoenvironment was a terrestrial freshwater environment characterized by strong reducibility. The paleoclimate was in a warm-humid climate background. A viewpoint confirmed by the field investigation is given, arguing that the optimum sedimentary facies were the shallow to half-deep lakes. Based on investigating the source rock sedimentary facies and palaeoenvironment, the authors have summarized the flat facies characteristics and the four main controlling factors. |
| CHEN Ji,JIANG Zai-xing,JIANG Zheng-long,QIU Hai-jun,JIANG Kun-peng,FU Wen-kang,BI Cai-qin.2015.Sedimentary Facies Characteristics and Palaeoenvironment of Jurassic Yangye Formation in the Southeastern Depression of the Tarim Basin[J].Acta Geoscientica Sinica,36(3):344-352. |
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